dewey



(No Model.) 2 Sheets-Sheet 1. M W. DEWEY. SELBGTNG TELEGRAPH.

No. 407,581. PatentedJuly 2.3, 1889.

WITNESSES:

ATTORNEYS (Nd Model.) 2 sheets-sheen 2.. M. W. DEWEY.

SELECTING TELBGRAPH.

NO- 407.581! nPatented July 23, 1889.

INVENTOR M 7AM?.

ATTRNEYS N. PETnRs. Phnm-Lnhegmphw. wuhnsinn, D. c.

UNITED STATES PATENT OEEICE.

MARK IV. DEWEY, OF SYRAOUSE, NEWI YORK, ASSIGNOR, BY DIRECT AND' MESNE ASSIGNMENTS, TO THE DEIVEY CORPORATION, OF SAME PLACE.

SELECTlNG-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 407,581, dated July 23, 1889.

Application tiled September 22, 1888. Serial No. 286,097. (No model.)

To all whom t may concern:

Be it known that I, MARK W. DEWEY, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Sclecting-Telegraphs, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention is designed to employ electric telegraphy for operating at the receivingstation type-writing machines, type-setting machines, and analogous devices having a number of parts distributed in a field of a definite area; and to that end the invention consists in a novel construction and combination of mechanisms operated by an electric circuit and auxiliary devices in said circuit, as hereinafter described, and specifically set forth in the claims.

In the annexed drawings, Figure l is a plan view of the apparatus at the transmitting'- station and receiving-station and their connections. Figs. 2 and 3 are respectively side and longitudinal sectional views of the transmitting-instrument. Figs. 4 and 5 are side and longitudinal sectional views of the receiving-instrument. Fig. 6 is a detached side View of the receiving-instrument and its connection with the rods which transmit motion thereto. Fig. 7 is a plan view of a modification of the apparatus at the transmitting-station and receiving-station. Fig. S isa detached side View of the receiving-instrument of said modification, and Fig. 9 shows a plan View and transverse section Aof one of the forms of the key-board that may be used in connection with my invention.

A designates the transmitting-station, and A the receiving-station.

I3 represents a table of contacts or keyboard for operating either a typewriter or other machine or apparatus having a number of parts from which to select one or more. Said key-board is located at the receivingstation, and a similar key-board B', or merely an index or guide corresponding to the keyboard at the receiving-station, is located at the transmittin0station. Over the table of contacts D .at the transmitti11g-station is a manipulative instrument a, preferably of the form of a stylus or pencil adapted to touch successively the contacts or keys, indicated by small circles b b in the drawings. Said keys are arranged in precisely the same relative positions on the table I3 as those at the receiving-station.

O O are rods disposed at right angles to each otherl and carrying conjointly at one end the manipulative instrumenta. The opposite ends of said rods are connected by balland-socket joints or universal joints c c to lon gitudinally-movable rods D D, which slide rectilinearlyin guides CZ d and have their free ends operating Variable resistances F F,which I prefer to form similar to those shown in another application for Letters Patent executed by me on the 19th day of September, 1888; but for the sake of convenience each of said variable resistances shown in Fig. l consists of a series of electric contact-points e, arranged in a path with intervening insulations c and resistances ff. I do not, however, limit myself to the use of this particular form of variable resistance, inasmuch as other well-known forms will answer the purpose.

The rods D D are to be insulated from each other in any suitable and well-known manner, preferably by interposing insulating material 0X between the rods D and O, as shown in Fig. l. of the drawings.

G denotes a suitable pole-changer, which is in one of the line-circuits I I', the magnet g of this pole-changer being in a local circuit h, with which is also connected the manipulative transmitting-instrument a by the following means: Said instrument is formed of a sleeve c' of non-conducting material, and in this sleeve slides longitudinally a metallic plunger j, the upper section of which is insulated from the lower section, as indicated at z" in Fig. 3 of the drawings. The lower end of the plunger is held normally protruded from` the sleeve and the upper end of the plunger away from the metallic cap Z of the sleeve by a sprin g 7e, interposed between a collar on the plunger and cap of the sleeve. One of the Wires of the local circuit 7L is connected with the metallic cap lof the sleeve c', and the other wire of said circuit is connected to a pin which ICO passes through the said cap and is insulated therefrom and has its inner end in contact withV the spring 71'., which completes the electric connection with the upper Section ot' the plunger. When the table ol. contacts l at the transmitting-station designed. to operate a type-writer or other analogous devices,

I employ another local circuit ll, one terminal of which is ccmnected either with the lower section et' the plunger ot' the manipulative instrument a, as represented in lfigs. l, 9, and "3 of the drawings, or with one ot' the movable electric contacts ot each key, as shown in ltig. S ot the drawings, and. the other terminal ot' said circuit is connected with the stationa-ry contacts oli' the key-boartlln the branches el' said circuit leading to the at'oresaid stationary contacts are located magnets L, which operate the type-levers ot a typewriter or the mechanism et? other devices.

Over the key-board l el' the receiving-sta tion. is an instrument a', similar to the man ipulative instrument d at the transmitting-station, and carried Vin a sin'rilar manner on the adjacent ends ot' two longitudinally-movable rods C C', disposed at right angles to each other and connected by a ball-and-socket joint or universal joint c to one end ot' rods D D', which slide longitudinally in stationary guides d d', and are connected atthe opw posite end te levers nl in, which are pivoted at one end and have attached to them armatures 91y n, facing magnets oo, which are in the main-line circuits Il. ln the same mainline circuit which includes the hereinbet'oie mentioned pole-changer is also a polarized relay l, which makes and breaks a local circuit N, vincludingI the reccivinginstrument a', which latter consists ol' an electrode and a solenoid 27, from which is extended a sleeve q, which surrounds the core p' ot' the solenoid, and also the electrode fr, extending lrom said core. The lower end et the sleeve has an aperture, through which the said electrode 1 n'otrudes. A spring fr in the sleeve q tends te Vtorce the core into the magnet et the solei noid, and thereby holds the electrode r retracted into the sleeve.

The terminals of the local circuit: N are eon uected to the solenoid p. keysboard l are electrically connected with magnets operating a type-writer or other device in the same manner as that described in connection with the transmitti ngsinstrument.

In lieu ot' the two ,rods t1 (l a single rod (i maybe employed, as iillinstrated in llig. 7 ol' the drawings, one end ot' this rod being pivoted to a suitable support and the opposite end having connected to it thc manipulative instrument (t, which, by swinging the rod on its pivot, is carried over the key-board ll, having its keys arranged Vin an are having the pivot ot the rod tor the center ol' a circle ol which said are is a part.

lhe rod (l, which is connected to the transmitting-instrtnnent (nis provided with a joint n, to allow the said instrument to be raised The keys ot' the and lowered to and f'rom the key-board or guide when desired. The variable resistance l? in this case is ot' the well-known t'erm Vin which the resistance to the current is varied by pressure. The pole-changer (l and relay R are in the main lineand connected with the electrodes el.' the transmitting and retleiving instruments in the same manner as 'hereinlwA t'ere described. ,Yhen keys are employed similar to that shown in Fig. S, thebars t1 in all cases are preferably capable only ot' movin meats in one. plane, as shown bythe joint at the support et the bar in said ligure. \\'hen the keysboard is arranged as shown in Fig. l et' the drawings, the pole-changer may he diss pensed with by drawing the electrode]across the intervening insulated portions ot.` the said key-board in moving said electrode l'rom one key to another, because in that case it is unnecessanv to provide meztns t'or automatieally raising and lowtufing the rceeiving-electrodtr fr t'rom and to the key-board.

rlhe operation et' my ,invention is as follows: 'lhe operator takes in his hand the transmittiug-instrument (l, raises the same slightly above the contacts or key and moves it toward and directly over the desired key, and then lowers 'the instrument a, and. brings the electrode j in contact with |said key, and by said contact the circuits ll and 71y areclosed, thereby energizing the magnet l) in a branch oli' the circuit'. ll7 connected with the said keyAq and also energizing the magnetoperatingthe pole-changer, changing the polarity in the line and effecting the movement of the polarized relay R at the receiving-station. ,ly the movement ol the transmitting-electrode to and over the atoresaiffl key the variable resistances with which the transmitting-inst rumcnt is connected are so alltu'ted as to canse the magnets o o at the recciving-station to attract their armatures with etnrespondiugly varied degrees ot' l'orce, and produce, by means ol. the levers/m. nzy and rods t/ C', a movement et' the receivix1g electrode r to and over the desired ke eerrespomling to that selected by thetransmittilig-electrode'j. lnloweringand bringing the transmittingElectrode Dj into contact with the key the local circuit ly is closed, and thus lthe magnet imerating the pole-changer (l is energizerfl, so as to change the polarity ot' the current in the line, and thereby et'ti'ect the movement ol.` the polarized relay lt at the receivi11g-station, so as to close the local circuit N, ctmtaining the solenoid p, which latter is then energized and caused to torce the spring-suppt)rted elect rode r outward, so as to 'I )rotrude through its holder and make Contact with the corresponding key. 'lhis contact closes a local circuit through a branch ot' the same, which branch cmreswnds to the branch ol the local circuitat the transmitting-statitm closed by the transmitting electrode, as betere described, and thus the receiving-eleetrode automatically conforms in all ot' its movimients to those infodueed by the transmitting-electrode.

IOO

The table of contacts B at receiving-station vis in all cases a key-board and the contacts are keys or equivalents thereto; but the table o f contacts B at transmitting-station may be either a key-board or simply a guide or index. When simply a guide t-he contacts are not operative but are simply to show the operator Where to move the transmitting-instrument in order to produce the desired movement of the receiving-instrument-viz., the contact of the receiving-in strument with a key on the key-board to operate the saine, said key being in the same location on its keyboard as the inoperative contact on the guide to which the said transmitting-in strument was moved.

lt will be obvious that it is not necessary for the said operative contacts on the tables to be movable.

Having described my invention, What I claim as new, and desire to secure by Letters Patent, iss l. In an electric telegraph comprising an electric circuit, a table of operative contacts at the receiving-station, a corresponding table ofcontacts at the transmitting-station, a transmitting-instrument adapted t0 be moved in different directions and to different distances over the latter table, and an instrument adapted to operate the contacts on the table at the receiving-station and electrically moved in unison with the tran smitting-instrumen t, as

' set forth.

2. In an electric telegraph, a main-line circuit, a table of contacts at the receiving-station, a corresponding table of contacts at the transmitting-station, a manipulative instrument adapted to be moved in different directions and to different distances over the latter table, an instrument adapted to operate the contacts at the receiving-station and moved in unison with the manipulative instrument by a suitable current or currents through the main line, and a circuit maker and breaker in a local circuit at t-he receiving-station operated by the aforesaid receiving-instrument.

3. In an electric telegraph, the combination of an electric circuit, corresponding tables of contacts respectively at the transmittingstation and receiving-station, a manipulative instrument adapted to operate the contacts at the transmitting-station, a rod extended from the manipulative instrument, a variable resistance in the aforesaid circuit operated by said rod, a magnet in said circuit at the receiving-station controlled by the varying strength of the current, an instrument adapted to operate the contacts at the receiving-station and actuated bythe aforesaid magnet, a pole-changer in said circuit operated by a magnet in a local circuit vat the transmittingstation, and a circuit maker and breaker in said local circuit operated by the aforesaid manipulative instrument, a polarized relay at the receiving-station in the main line, a local circuit controlled by said relay, and a magnet in said local circuit also actuating the said receiving-instrument, as set forth.

'4. In an electric telegraph, the combination of electric circuits, corresponding tables of contacts respectively at the transmitting-station and receiving-station, a manipulativeinstrument adapted to operate the contacts at the transmitting-station, rods'disposed at right angles to each other and carrying conjointly at one end the aforesaid manipulative instrument, variable resistances in said circuits operated by said rods, an instrument adapted to operate the contacts at the receiving-station, rods disposed at right angles to each other and carrying conjointly at one end the latter instrument, armature-levers connected With the latter rods, and magnets at the receiving station controlled by the varying strength of the current or currents in said circuits and operating the aforesaid armaturelevers, substantially as described and shown.

5. In an electric telegraph, the combination of an electric circuit, corresponding tables of contacts respectively at the transmitting-station and receiving-station, a manipulative instrument adapted to operate the contacts at the transmitting-station, rods disposed at right angles to each other and carrying conjointly at one end the aforesaid manipulative instrument,'va`rialole resistances operated by said rods, an instrument adapted to operate the contacts at the receiving-station, rods disposed at right angles to each other and carrying conj ointly at one end the latter instrument, armature-levers connected with the latter rods, magnets at the receiving-station controlled by the varying current in said circuit and operating the aforesaid armature-levers, a pole-chan ger in the main circuit at the transmitting-station operated by a magnet in a local circuit, a maker and breaker in said local circuit carried and operated by the manipulative instrument, a local circuit at the receiving-station, a magnet carried by the instrument which operates the contacts at the receiving-station, and a relay in the main line at the receiving-station moved by the cha-nge of polarity in the line to make and break the local circuit including said magnet, for the purpose set forth.

6. A transmitting-instrument consist-ing of a sleeve of non-conducting material, a metallic pl un ger sliding longitudinally in said sleeve and having its two ends insulated from each other, a metallic cap on one end of the sleeve forming one terminal of an electric circuit and the upper end of the plunger forming the yother terminal of said circuit, and a terminal of another circuit connected with the lower section of the plunger, substantially as described and shown.

7. A receiving-instrument consisting of a solenoid, a sleeve extending from the solenoid and surrounding the core thereof, a spring supporting the core, an electrode extending from the core and terminals of an electric cir- IOO IIO

ISO

enit connected with the Solenoid, and another In testimony whereofIlmVelmrenntosigned terminal oli' :tn electric Circuit Connected with n1ynmne,n the presenee oli' two witnesses, nt

the Core,Substantiallynsdeseribed and shown. Syracuse, in the oonnty ot' Onondngn7 in the S. A manipulative transn1tti11g-instrument State ol' New York, this 20th lay ol.' Seplemx5 5 consisting ol :L holder, :L plunger sliding' lonlwer, 18852.

gitndnnlly within sont holder, electric con` tzzret-pflrts on Said parts, n pole-Changer in MARK \V. 'DIVEX". K]

:Ln eleetrie circuit, :unl :L magnet in a loCLl eirenit operating' said pole-changer :tml oonlVtnesseS: xo neetetl with the aforesaid Contact-points, sul)- J. J. LAASS,

Stnntinlly :1S set forth. l lV. Il'. RANDALL. 

